adv.不可逆转地
Chinese state media say that a government study of the health of the Yangtze River shows that billions of tons of waste have irreversibly polluted its waters. 中国官方媒体报导，中国政府对长江进行的一项水质调查表明，倾倒进长江的几十亿吨废物不可逆转地污染了长江水质。
